The readers will know that it is Panchito’s point of view because Panchito refers to himself as “I” and “me”. He reflects on only his own, or Panchito's, thoughts. All of the stories are told from Panchito's perspective, or point of view.
A poem is your answer. Please comment if you want more examples :)
Answer:
1.This moment is important because it's almost like Gatsby had a certain interest in Nick. He was the only one who got an actual invitation to the partyso it definitely makes it seem like Gatsby knows who Nick is without ever meeting him before. A lot of people don’t even know who Gatsby is, they simply just go for the party and being able to say they went to a Gatsby party. Some were introduced but even then they still just kept going on with the party so maybe it could just be because Nick is his neighbor but there still seems to be something more to this situation.
For me it would be all of them, but if you have to pick one I would pick loose leaf paper so you can have enough space to write and organize it